* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

*::before {box-sizing: border-box}

*::after {box-sizing: border-box}

#text {
  position: fixed;
  height: 50vh;
  top: 0;
  left: 0;
  width: 100%;
  border-bottom: 1px solid black;
  overflow-y: auto;
}

#text::-webkit-scrollbar {
  display: none;
}

#style {
  display: none;
}

#html {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 50vh;
}

#buttons {
  position: fixed;
  right: 0;
  top: 0;
  z-index: 10;
  display: flex;
  flex-direction: column;
  margin-top: 1em;
  margin-right: 1em;
}

#buttons > button {
  display: inline-block;
  margin-bottom: 1em;
  border: 1px solid #dcdee2;
  background: white;
  color: #515a6e;
  height: 32px;
  line-height: 1.5;
  font-size: 14px;
  padding: 0 15px;
  outline: none;
  border-radius: 4px;
  cursor: pointer;
}

#buttons > button:focus {
  box-shadow: 0 0 2px rgba(45, 140, 240, .2);
  background: #ecf5ff;;
  border-color: #c6e2ff;
}

#buttons > button:active {
  color: #2b85e4;
  background-color: #fff;
  border-color: #2b85e4;
  outline: none;
}

#buttons > button:hover {
  color: #57a3f3;
  background-color: #ecf5ff;
  border-color: #57a3f3;
}